diff --git a/CHANGES.rst b/CHANGES.rst
index cabf5890..c42e5e67 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -52,6 +52,8 @@ Changes in this release include the following:
 
 * Fix Python3 division in ThumbnailCtrl. (#746)
 
+* Fix leaking image list in CheckListCtrlMixin (#752)
+
 
 
 
diff --git a/wx/lib/mixins/listctrl.py b/wx/lib/mixins/listctrl.py
index 04f436e7..021eca8d 100644
--- a/wx/lib/mixins/listctrl.py
+++ b/wx/lib/mixins/listctrl.py
@@ -732,7 +732,7 @@ class CheckListCtrlMixin(object):
 
         self.uncheck_image = self.__imagelist_.Add(uncheck_image)
         self.check_image = self.__imagelist_.Add(check_image)
-        self.SetImageList(self.__imagelist_, wx.IMAGE_LIST_SMALL)
+        self.AssignImageList(self.__imagelist_, wx.IMAGE_LIST_SMALL)
         self.__last_check_ = None
 
         self.Bind(wx.EVT_LEFT_DOWN, self.__OnLeftDown_)